Checking program for RTC module inside CPU.
Dependents: RTC_w_COM Frequency_Counter_w_GPS_1PPS debug_tools Nucleo_RTC_Clock_setting ... more
Please refer below link.
http://developer.mbed.org/users/kenjiArai/notebook/nucleo-series-clock-structure-and-xtal-oscillation/
CheckRTC.h
- Committer:
- kenjiArai
- Date:
- 2014-11-01
- Revision:
- 1:921a188e61c0
- Parent:
- 0:01ddb8e35845
- Child:
- 2:2ee7a7260cbf
File content as of revision 1:921a188e61c0:
/* * mbed Library program * Check RTC function and set proper clock if we can set * ONLY FOR "Nucleo Board" * * Copyright (c) 2010-2014 Kenji Arai / JH1PJL * http://www.page.sannet.ne.jp/kenjia/index.html * http://mbed.org/users/kenjiArai/ * Created: October 24th, 2014 * Revised: November 1st, 2014 * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef CHECK_RTC_H #define CHECK_RTC_H #include "mbed.h" #define TIMEOUT ((uint32_t)5000) enum { UNKNOWN = -1, NG =0, OK }; /** Checking program for RTC module inside CPU * Latest Nucleo board has external LSE Crystal X2 but no proper setting both HW ans SW * This program intends to use RTC with X2 * * @code * #include "mbed.h" * #include "CheckRTC.h" * * int main() { * time_t seconds; * * CheckRTC(); * printf("Time: %s", ctime(&seconds)); * } * @endcode */ /** Check and Set RTC * @param none * @return if proper setting = OK, if not = NG and UNKNOWN-> no support this program */ int32_t CheckRTC(void); uint32_t get_RTCSEL(void); #endif // CHECK_RTC_H